Since my rides have been pretty short I haven't had much in the way of muscle soreness. You know, I'll feel a burn in my thighs if I'm pumping up hill or feel a little weak and quivery for a sec when I get off the bike, but no residual soreness.

Today is the first time I've had a little. Not enough to bother with ibuprofen, even. Which means (I figure) that I'm not pushing it. (Today I did 6.4 miles which is 1/3 farther than I've gone before.)

But I'm noticing some upper arm soreness -- the outside muscles. (No idea which ones those are.) I also noticed that my arms are pretty straight when I'm riding my hybrid, and if I'm not careful I could be locking them straight. I've read other people's comments about numb wrists, or keeping arms bent, and am wondering if I need to adjust my handlebars in some way.

So, anyway, are the outside upper arm muscles some you'd expect to be a bit sore if you pushed yourself a bit farther than usual, or are they muscles that would only be effected if something's adjusted wrong?

Also, I found it interesting that my husband says it's the underneath of his thighs that burn when we go uphill. It's the top of mine.